New immigration application fees from 4 October 2023

The Home Office has published revised Immigration fees for in-country (UK) and outside-the-country applications. This includes the family members of new BOTC & British citizens:
Links for more useful information can be found here:
House of Commons Library publication:
https://commonslibrary.parliament.uk/research-briefings/cbp-9859/
Home Office official page:
https://www.gov.uk/government/publications/visa-fees-transparency-data
Free Movement web page: